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Finding the Fourth Proportional to 364.22, 502.44 and 216.80

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Solution

The fourth proportional to 364.22, 502.44 and 216.80 is: 299.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.22 : 502.44 = 216.80 : x
  2. Step 2: Convert to fraction form
    364.22/502.44 = 216.80/x
  3. Step 3: Cross multiply
    364.22x = 502.44 × 216.80
  4. Step 4: Simplify right side
    364.22x = 108,928.99
  5. Step 5: Solve for x
    x = 108,928.99/364.22
  6. Step 6: Final answer
    x = 299.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.